Shanghai Jason Vacuum Co., Ltd. was founded in November 2007. In the early stage of its establishment, it is mainly engaged in OEM manufacturing services related to high vacuum optical coating machines. Our products cover vacuum chambers, all kinds of valves, high vacuum diffusion pumps and all kinds of vacuum components, etc. So far, we have established OEM business relations with many top vacuum equipment manufacturers in the world. Good performance also has been achieved in cooperation with many parties.